Official METAR observations at King Abdulaziz International Airport (OEJN) have confirmed a peak temperature of 37°C on April 27 under a persistent high-pressure ridge driving subsidence, clear skies, and maximal solar insolation with light winds and low humidity. ECMWF and GFS model consensus projected this exact daily high, aligning with Jeddah's late-April climatology where averages near 35°C routinely reach 37°C in stable anticyclonic conditions, explaining the market's near-unanimous implied probability for 37°C backed by trader capital. Realistic challenges include a late marine influence cooling the coast or measurement revision from Wunderground aggregation, though falling evening temperatures (now ~30°C) and no convective threats per National Center for Meteorology updates render 38°C+ improbable.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedHighest temperature in Jeddah on April 27?
37°C 100.0%
28°C or below <1%
29°C <1%
30°C <1%
$57,899 Vol.
$57,899 Vol.
28°C or below
No
29°C
No
30°C
No
31°C
No
32°C
No
33°C
No
34°C
No
35°C
No
36°C
No
37°C
Yes
38°C or higher
No
37°C 100.0%
28°C or below <1%
29°C <1%
30°C <1%
$57,899 Vol.
$57,899 Vol.
28°C or below
No
29°C
No
30°C
No
31°C
No
32°C
No
33°C
No
34°C
No
35°C
No
36°C
No
37°C
Yes
38°C or higher
No
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day by the Forecast for the King Abdulaziz International Airport Station once information is finalized, available here: https://www.wunderground.com/history/daily/sa/jeddah/OEJN.
To toggle between Fahrenheit and Celsius, click the gear icon next to the search bar and switch the Temperature setting between °F and °C.
This market can not resolve to "Yes" until all data for this date has been finalized.
The resolution source for this market measures temperatures to whole degrees Celsius (eg, 9°C). Thus, this is the level of precision that will be used when resolving the market.
Any revisions to temperatures recorded after data is finalized for this market's timeframe will not be considered for this market's resolution.
Market Opened: Apr 25, 2026, 12:10 AM ET
Resolution Source
https://www.wunderground.com/history/daily/sa/jeddah/OEJNResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day by the Forecast for the King Abdulaziz International Airport Station once information is finalized, available here: https://www.wunderground.com/history/daily/sa/jeddah/OEJN.
To toggle between Fahrenheit and Celsius, click the gear icon next to the search bar and switch the Temperature setting between °F and °C.
This market can not resolve to "Yes" until all data for this date has been finalized.
The resolution source for this market measures temperatures to whole degrees Celsius (eg, 9°C). Thus, this is the level of precision that will be used when resolving the market.
Any revisions to temperatures recorded after data is finalized for this market's timeframe will not be considered for this market's resolution.
Resolution Source
https://www.wunderground.com/history/daily/sa/jeddah/OEJNResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
Official METAR observations at King Abdulaziz International Airport (OEJN) have confirmed a peak temperature of 37°C on April 27 under a persistent high-pressure ridge driving subsidence, clear skies, and maximal solar insolation with light winds and low humidity. ECMWF and GFS model consensus projected this exact daily high, aligning with Jeddah's late-April climatology where averages near 35°C routinely reach 37°C in stable anticyclonic conditions, explaining the market's near-unanimous implied probability for 37°C backed by trader capital. Realistic challenges include a late marine influence cooling the coast or measurement revision from Wunderground aggregation, though falling evening temperatures (now ~30°C) and no convective threats per National Center for Meteorology updates render 38°C+ improbable.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated

Beware of external links.
Beware of external links.
Frequently Asked Questions